A range of powerful yet efficient V-8 engines is offered. Variable valve timing is standard on all V-8 engines and cylinder-deactivating Active Fuel Management is incorporated on 5.3L engines. These technologies help optimize performance and efficiency. Sierra's powertrains, backed by fuel-saving, six-speed automatic transmissions, help deliver the industry's best V-8 fuel economy.

Supported by the robust full-size truck architecture, Sierra's powertrains also enable excellent capability, including a maximum payload capacity of 1,937 pounds. And when equipped with the available max trailering package and the 6.2L V-8, the Sierra 1500 can tow up to 10,700 pounds.

New for 2013 is powertrain grade braking in the normal transmission mode. It uses engine torque to help slow the vehicle on descents, which helps reduce brake wear.

The Sierra is characterized by a rugged yet refined appearance, with chiseled bodywork complemented by details such as chrome bumpers. Additional elements, including flared rear fenders and premium headlamps, contribute to Sierra's refinements, while features such as large, grab-style door handles reinforce the notion that it is a truck first and foremost.